Reviewed, UniProtKB/Swiss-Prot B7GKI1 (RISB_ANOFW)

Names and origin

Protein names

Recommended name:
    6,7-dimethyl-8-ribityllumazine synthase
      Short name=DMRL synthase
      Short name=Lumazine synthase
    EC=2.5.1.9
Alternative name(s):
    Riboflavin synthase beta chain

Gene names

Name:	ribH
Ordered Locus Names:	Aflv_1018

Organism

Anoxybacillus flavithermus (strain DSM 21510 / WK1) [Complete proteome] [HAMAP]

Taxonomic identifier

491915 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Bacillales › Bacillaceae › Anoxybacillus

Protein attributes

Sequence length	154 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Riboflavin synthase is a bifunctional enzyme complex catalyzing the formation of riboflavin from 5-amino-6-(1'-D)-ribityl-amino-2,4(1H,3H)-pyrimidinedione and L-3,4-dihydrohy-2-butanone-4-phosphate via 6,7-dimethyl-8-lumazine. The beta subunit catalyzes the condensation of 5-amino-6-(1'-D)-ribityl-amino-2,4(1H,3H)-pyrimidinedione with L-3,4-dihydrohy-2-butanone-4-phosphate yielding 6,7-dimethyl-8-lumazine By similarity.
Catalytic activity	2 6,7-dimethyl-8-(1-D-ribityl)lumazine = riboflavin + 4-(1-D-ribitylamino)-5-amino-2,6-dihydroxypyrimidine. HAMAP MF_00178
Pathway	Cofactor biosynthesis; riboflavin biosynthesis; 5-amino-6-(D-ribitylamino)uracil and riboflavin from 6,7-dimethyl-8-(1-D-ribityl)lumazine: step 1/1. HAMAP MF_00178
Sequence similarities	Belongs to the DMRL synthase family.

Ontologies

Keywords
Biological process	Riboflavin biosynthesis
Molecular function	Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	riboflavin biosynthetic process Inferred from electronic annotation. Source: HAMAP
Cellular component	riboflavin synthase complex Inferred from electronic annotation. Source: InterPro
Molecular function	riboflavin synthase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 154	154	6,7-dimethyl-8-ribityllumazine synthase HAMAP MF_00178		PRO_1000195453

Sequences

	Sequence		Length	Mass (Da)
	B7GKI1-1 [UniParc]. Last modified February 10, 2009. Version 1. Checksum: DF1B1AD1B6C17394	FASTA	154	16,380
	10 20 30 40 50 60 MNVYEGNLVG TGLKIGIVVA RFNEFITSKL LSGALDGLKR HGVEEQHIDV AWVPGAFEIP 70 80 90 100 110 120 LVAKKMAESK KYDAVITLGA VIRGATSHYD YVCNEVAKGT SHAALSSGVP VIFGVLTTDT 130 140 150 IEQAIERAGT KAGNKGWEAA LSAIEMANVM RTFS

References

[1]

"Encapsulated in silica: genome, proteome and physiology of the thermophilic bacterium Anoxybacillus flavithermus WK1." Saw J.H., Mountain B.W., Feng L., Omelchenko M.V., Hou S., Saito J.A., Stott M.B., Li D., Zhao G., Wu J., Galperin M.Y., Koonin E.V., Makarova K.S., Wolf Y.I., Rigden D.J., Dunfield P.F., Wang L., Alam M. Genome Biol. 9:RESEARCH161.1-RESEARCH161.16(2008) [PubMed: 19014707] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000922 Genomic DNA. Translation: ACJ33394.1.
RefSeq	YP_002315379.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	7037275.
GenomeReviews	Gene locus Aflv_1018 in contig CP000922_GR.
KEGG	afl:Aflv_1018.
Organism-specific databases
CMR	Search...
Family and domain databases
HAMAP	MF_00178. [Tree]
InterPro	IPR002180. DMRL_synthase. [Graphical view]
Gene3D	G3DSA:3.40.50.960. DMRL_synthase. 1 hit.
PANTHER	PTHR21058. DMRL_synthase. 1 hit.
Pfam	PF00885. DMRL_synthase. 1 hit. [Graphical view]
TIGRFAMs	TIGR00114. lumazine-synth. 1 hit.
ProtoNet	Search...

Entry information

Entry name

RISB_ANOFW

Accession

Primary (citable) accession number: B7GKI1

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	February 10, 2009
Last modified:	September 22, 2009
This is version 8 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)